Figure 1: Gray-scale (a and b) ultrasonography images of the graft kidney showing the increased cortical echogenicity and mildly altered corticomedullary differentiation along with the large hypoechoic round structure at the hilum with central hyperechogenicity (thrombosis). Color Doppler sonography (c and d) images of the same patient showing the normal segmental arterial waveform and thrombosed pseudoaneurysm